Details

Description

1) IReduce protocol is missing implementation for array and List.
2) append! uses (.add array), while the correct array method name is push

Patch attached.

Note: what is your experience with array.push performance? ClojureScript reducers/foldcat uses arrays for append! / cat implementation. My experience was that (into [] ...) using conj! and TransientVector was at least 5 times faster than reducers/foldcat using array and push. The reason is probably inefficient push implementation in Chrome/V8